215865188

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1697}}^1$

素因数の和:1785

約数の個数: 72

約数和(自身を含む): 487801440

約数和(自身を除く): 271936252

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 59, 77, 98, 118, 154, 196, 236, 308, 413, 539, 649, 826, 1078, 1298, 1652, 1697, 2156, 2596, 2891, 3394, 4543, 5782, 6788, 9086, 11564, 11879, 18172, 18667, 23758, 31801, 37334, 47516, 63602, 74668, 83153, 100123, 127204, 130669, 166306, 200246, 261338, 332612, 400492, 522676, 700861, 914683, 1101353, 1401722, 1829366, 2202706, 2803444, 3658732, 4405412, 4906027, 7709471, 9812054, 15418942, 19624108, 30837884, 53966297, 107932594, 215865188]

約数ペア:

[(1, 215865188), (2, 107932594), (4, 53966297), (7, 30837884), (11, 19624108), (14, 15418942), (22, 9812054), (28, 7709471), (44, 4906027), (49, 4405412), (59, 3658732), (77, 2803444), (98, 2202706), (118, 1829366), (154, 1401722), (196, 1101353), (236, 914683), (308, 700861), (413, 522676), (539, 400492), (649, 332612), (826, 261338), (1078, 200246), (1298, 166306), (1652, 130669), (1697, 127204), (2156, 100123), (2596, 83153), (2891, 74668), (3394, 63602), (4543, 47516), (5782, 37334), (6788, 31801), (9086, 23758), (11564, 18667), (11879, 18172)]